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    题名 作者 年代 出处 被引量
1Temporal echocardiography findings in patients with fulminant myocarditis: beyond ejection fraction decline显示文摘The features of myocardial strains from speckle-tracking echocardiography (STE) have not been well defined in fulminant myocarditis (FM) patients.In this study,changes in the left ventricular ejection fraction (LVEF) and global and layer-specific myocardial strains over time were monitored.We aimed to determine the echocardiographic patterns of FM and ascertain their significance in FM treatment.Twenty patients who were clinically diagnosed with FM and received mechanical life support were prospectively enrolled.Conventional echocardiographic measurements were obtained,and serial strain echocardiography was performed from admission to hospital discharge until LVEF recovery (> 50%).Global/regional peak systolic longitudinal strains (GLS/RLS) and layer-specific longitudinal strains were quantified,and their changes with time were monitored in 14 FM patients.All patients had severely impaired cardiac function.Steep improvement in LVEF and GLS were observed within 6 days.Layer-specific strain analysis showed that reduction at admission or recovery at discharge in the endocardium and epicardium strains were equal.In conclusion,FM patients who received mechanical circulatory supports exhibited steep improvement in ventricular function within 6 days.The patchy and diffused distribution pattern of reduced RLS and equally and severely impaired strain in the endocardium and epicardium are valuable features in the diagnosis of FM.Houjuan Zuo Rui Li Fei Ma Jiangang Jiang Kun Miao Haojie Li Eike Nagel Marijana Tadic Hong Wang Dao Wen Wang 2020Frontiers of Medicine2020,14,3:10
2全球正义问题显示文摘全球正义首先要求各民族国家之间关系的秩序化。虽然正义标准能够通过道德推理获得,但它们只在主权国家的边界之内有效。无论从世界主义的正义观还是从政治的正义观出发,全球正义都要求全球主权。走向某种全球正义的最可能的路径是产生一种为各强大的民族国家所接受的非正义的全球权力结构。从无序状态迈向正义的途径必须是非正义的。这种观点本质上是一种霍布士主义。托马斯·内格尔(Thomas Nagel) 赵永刚(译) 易小明校 2010吉首大学学报(社会科学版)2010,31,6:8
3中等收入国家年轻人脑卒中发病率增加:基于10年人口的研究显示文摘高收入国家年轻人脑卒中的发病率正在上升。然而,低收入和中等收入国家年轻人的脑卒中发病趋势仍未知。该研究旨在分析2005—2015年在巴西Joinville的年轻人的缺血性脑卒中(isehemic stroke,IS)和脑出血的发病趋势。刘莉 叶鹏 Cabral NL Freire AT Conforto AB Dos Santos N Reis FI Nagel V Guesser VV Safanelli J Longo AL 2017中华高血压杂志2017,25,11:6
4原发性中枢神经系统淋巴瘤的影像诊断显示文摘Horger M Schulze M Mroue A Nagele T Ernemann U 徐安辉(译) 胡道予(校) 2009放射学实践2009,24,1:5
5Comparison of conventional radiography and MDCT in suspected scaphoid fractures显示文摘AIM: To determine the diagnostic accuracy and radiation dose of conventional radiography and multidetector computed tomography(MDCT) in suspected scaphoid fractures.METHODS: One hundred twenty-four consecutive patients were enrolled in our study who had suffered from a wrist trauma and showed typical clinical symptoms suspicious of an acute scaphoid fracture. All patients had initially undergone conventional radiography. Subsequent MDCT was performed within 10 d because of persisting clinical symptoms. Using the MDCT data as the reference standard, a fourfold table was used to classify the test results. The effective dose and impaired energy were assessed in order to compare the radiation burden of the two techniques. The Wilcoxon test was performed to compare the two diagnostic modalities.RESULTS: Conventional radiography showed 34 acute fractures of the scaphoid in 124 patients(42.2%). Subsequent MDCT revealed a total of 42 scaphoid fractures. The sensitivity of conventional radiography for scaphoid fracture detection was 42.8% and its specificity was 80% resulting in an overall accuracy of 59.6%. Conventional radiography was significantly inferior to MDCT(P < 0.01) concerning scaphoidfracture detection. The mean effective dose of MDCT was 0.1 m Sv compared to 0.002 m Sv of conventional radiography.CONCLUSION: Conventional radiography is insufficient for accurate scaphoid fracture detection. Regarding the almost negligible effective dose, MDCT should serve as the first imaging modality in wrist trauma.Cyrus Behzadi Murat Karul Frank Oliver Henes Azien Laqmani Philipp Catala-Lehnen Wolfgang Lehmann Hans-Dieter Nagel Gerhard Adam Marc Regier 2015World Journal of Radiology2015,7,1:4
6Role of interleukin-1 and its antagonism of hepatic stellate cell proliferation and liver fibrosis in the Abcb4^(-/-) mouse model显示文摘AIM: To study the interleukin-1(IL-1) pathway as a therapeutic target for liver fibrosis in vitro and in vivo using the ATP-binding cassette transporter b4^(-/-)(Abcb4^(-/-)) mouse model.METHODS: Female and male Abcb4^(-/-) mice from 6 to 13 mo of age were analysed for the degree of cholestasis(liver serum tests), extent of liver fibrosis(hydroxyproline content and Sirius red staining) and tissue-specific activation of signalling pathways such as the IL-1 pathway [quantitative polymerase chain reaction(q PCR)]. For in vivo experiments, murine hepatic stellate cells(HSCs) were isolated via pronasecollagenase perfusion followed by density gradient centrifugation using female mice. Murine HSCs were stimulated with up to 1 ng/m L IL-1β with or without 2.5 μg/m L Anakinra, an IL-1 receptor antagonist, respectively. The proliferation of murine HSCs was assessed via the Brd U assay. The toxicity of Anakinra was evaluated via the fluorescein diacetate hydrolysis(FDH) assay. In vivo 8-wk-old Abcb4^(-/-) mice with an already fully established hepatic phenotype were treated with Anakinra(1 mg/kg body-weight daily intraperitoneally) or vehicle and liver injury and liver fibrosis were evaluated via serum tests, q PCR, hydroxyproline content and Sirius red staining. RESULTS: Liver fibrosis was less pronounced in males than in female Abcb4^(-/-) animals as defined by a lower hydroxyproline content(274 ± 64 μg/g vs 436 ± 80 μg/g liver, respectively; n = 13-15; P < 0.001; MannWhitney U-test) and lower m RNA expression of the profibrogenic tissue inhibitor of metalloproteinase-1(TIMP)(1 ± 0.41 vs 0.66 ± 0.33 fold, respectively; n = 13-15; P < 0.05; Mann-Whitney U-test). Reduced liver fibrosis was associated with significantly lower levels of F4/80 m RNA expression(1 ± 0.28 vs 0.71 ± 0.41 fold, respectively; n = 12-15; P < 0.05; Mann-Whitney U-test) and significantly lower IL-1β m RNA expression levels(1 ± 0.38 vs 0.44 ± 0.26 fold, respectively; n = 13-15; P < 0.001; Mann-Whitney U-test). No gender differences in the serum liver parameters [bilirubin; alanine aminotransferase(ALT); aspartate aminotransferase and alkaline phosphatase(AP)] were found. In vitro, the administration of IL-1β resulted in a significant increase in HSC proliferation [0.94 ± 0.72 arbitrary units(A.U.) in untreated controls, 1.12 ± 0.80 A.U. at an IL-1β concentration of 0.1 ng/m L and 1.18 ± 0.73 A.U. at an IL-1β concentration of 1 ng/m L in samples from n = 6 donor animals; P < 0.001; analyses of variance(ANOVA)]. Proliferation was reduced significantly by the addition of 2.5 μg/m L Anakinra(0.81 ± 0.60 A.U. in untreated controls, 0.92 ± 0.68 A.U. at an IL-1β concentration of 0.1 ng/m L, and 0.91 ± 0.69 A.U. at an IL-1β concentration of 1 ng/m L; in samples from n = 6 donor animals; P < 0.001; ANOVA) suggesting an anti-proliferative effect of this clinically approved IL-1 receptor antagonist. The FDH assay showed this dose to be non-toxic in HSCs. In vivo, Anakinra had no effect on the hepatic hydroxyprolinecontent, liver serum tests(ALT and AP) and profibrotic(collagen 1α1, collagen 1α2, transforming growth factor-β, and TIMP-1) and anti-fibrotic [matrix metalloproteinase 2(MMP2), MMP9 and MMP13 ] gene expression after 4 wk of treatment. Furthermore, the hepatic IL-1β and F4/80 m RNA expression levels were unaffected by Anakinra treatment.CONCLUSION: IL-1β expression is associated with the degree of liver fibrosis in Abcb4^(-/-) mice and promotes HSC proliferation. IL-1 antagonism shows antifibrotic effects in vitro but not in Abcb4^(-/-) mice.Florian P Reiter Ralf Wimmer Lena Wottke Renate Artmann Jutta M Nagel Manuel O Carranza Doris Mayr Christian Rust Peter Fickert Michael Trauner Alexander L Gerbes Simon Hohenester Gerald U Denk 2016World Journal of Hepatology2016,8,8:3
7FMS50柔性加工系统显示文摘本文对FMS5 0系统结构进行了介绍 ,着重阐述了该系统的多种物流模式 ,并分析了其通信控制系统的构成。周磊 多辉 Hermann Nagel 2004机床与液压2004,32,10:2
8Towards a ''matrix theory'' for unbounded operator matrixes 显示文摘NAGEL R 1989Mathematische Zeitschrift1989,201,:2
9脑卒中血栓切除术后血压与短期和长期功能转归的相关性显示文摘缺血性脑卒中机械性血栓切除术后的转归可能受血压的影响。该研究旨在评估全身麻醉期间和清醒镇静期间血压变化与机械性血栓切除术后功能性转归的关系。血管内治疗脑卒中的镇静与气管插管研究是一项涉及血压目标值的,比较在全身麻醉与在清醒镇静的条件下行机械血栓切除疗效的单中心随机试验。刘青 叶鹏 Schnenberger S Uhlmann L Ungerer M Pfaff J Nagel S Klose C Bendszus M Wick W Ringleb PA Kieser M Mhlenbruch MA Bsel J 2018中华高血压杂志2018,26,7:2
10胎儿心音信号的数字分析显示文摘本文研究了胎儿第一心音与第二心音的频谱,比较了它们的特点.从而提出了分离第一心音与第二心音信号的频率滤波方法的设想.还提出了应用Hilbert交换由心音和心电测定射血前期的方案.探讨了研制胎儿心音监护仪的可能方案.周礼杲 Kartmann P. Nagel J. Schaldach M 1991北京生物医学工程1991,10,4:2
11Implications for human health of the extensive bisphenol A literature showing adverse effects at low doses: A response to attempts to mislead the public 显示文摘Vom S F Nagel S C Timms B G 2005Toxicology2005,212,23:1
12Techniques for bonding rubber to metal:Using metallic coagents显示文摘COSTIN R NAGEL W 1999Kautschuk und Gummi Kunststoffe1999,52,3:1
13The physics of granular materials显示文摘Jaeger H M Nagel S R Behringer R P 1996Physics Today1996,49,4:1
14Retention of function without normal disc morphogenesis occurs in cone but not rod photoreceptors显示文摘Farjo R Skaggs JS Nagel BA 2006J Cell Biol2006,173,1:1
15Model-based Object Tracking in Monocular Image Sequences of Road traffic Scenes 显示文摘Koller D Daniilidis K Nagel H 1993International Journal of Computer Vision1993,10,93:1
16Social Cognition, Joint Attention, and Communicative Competence from 9 to 15 Months of age显示文摘Carpenter M Nagell K Tomassello M 1998Monographs of the Society for Research in Child Development1998,63,4:1
17Synthesis,in vivo activity of novel 9-deoxo-9a-aza-homoerythromycin A derivatives; A new class of macrolide antibiotics,the azalides显示文摘 Nagel A A Bordnor J 1988J Antibiot1988,41,8:1
18The effect of telmisartan on glucose and lipid metabolism in nondiabetic, insulin resistant subjects显示文摘Nagel JM Tietz AB Goke B 2006Metabolism2006,55,9:1
19Regulation of the adenoma- tous polyposis coli gene by the miR - 135 family in colorectal cancer 显示文摘Nagel R le Sage C Diosdado B 2008Cancer Res2008,68,14:1
20Topographically graded postis-chemic presence of metallopmteinases is inhibited by hypothermia显示文摘Wagner S Nagel S Kluge B 2003Brain Res2003,984,12:1
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